<template>
  <!-- 选择课程 -->

  <el-dialog title="选择课程" :visible.sync="visible" width="800px" top="5vh" append-to-body>
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true">
      <el-form-item label="名称" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>

      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>


    <el-row>
      <el-table @row-click="clickRow" ref="table" :data="dataList" @selection-change="handleSelectionChange" height="260px">
        <el-table-column type="selection" width="55"></el-table-column>
        <el-table-column label="课程名称" align="center" prop="name" />
        <el-table-column label="类型" align="center" prop="type">
          <template slot-scope="scope">
            <dict-tag :options="dict.type.curriculum_type" :value="scope.row.type"/>
          </template>
        </el-table-column>
        <el-table-column label="价格" align="center" prop="price" />
        <el-table-column label="课时" align="center" prop="lessonHours" />

        <el-table-column label="创建时间" align="center" prop="createdDate" width="180">
          <template slot-scope="scope">
            <span>{{ parseTime(scope.row.createdDate) }}</span>
          </template>
        </el-table-column>
      </el-table>
      <pagination
        v-show="total>0"
        :total="total"
        :page.sync="queryParams.pageNum"
        :limit.sync="queryParams.pageSize"
        @pagination="getList"
      />
    </el-row>
    <div slot="footer" class="dialog-footer">
      <el-button type="primary" @click="handleSelectUser">确 定</el-button>
      <el-button @click="visible = false">取 消</el-button>
    </div>
  </el-dialog>
</template>

<script>

import { listCurriculum} from "@/api/jiaopei/curriculum";

export default {
  dicts: ['curriculum_type'],
  props: {
  },
  data() {
    return {
      // 遮罩层
      visible: false,
      isOne: true,
      // 选中数组值
      rows: [],
      // 总条数
      total: 0,
      // 未授权用户数据
      dataList: [],
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        name: undefined
      }
    };
  },
  methods: {
    // 显示弹框
    show(isOne) {
      this.getList();
      this.visible = true;
      this.isOne=isOne||true;
    },
    clickRow(row) {
      this.$refs.table.toggleRowSelection(row);
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.rows = selection.map(item => item);
    },
    // 查询表数据
    getList() {
      listCurriculum(this.queryParams).then(res => {
        this.dataList = res.rows;
        this.total = res.total;
      });
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    /** 选择授权用户操作 */
    handleSelectUser() {

      if(this.isOne&&this.rows.length>1){
        alert("只能选择一个");
        return;
      }
      this.visible = false;
      this.$emit("ok",(this.isOne)?this.rows[0]:this.rows);
    }
  }
};
</script>
